I have a Vaillant EcoTec Plus boiler. I don't want to control it but I'd like to be able to read the values of flow and return temperature so I can plot them on a graph.
I've searched the internet and it appears that this can be done with an Arduino, but most of the posts on the subject are in German which I don't speak.
Does anyone here have any relevant experience please?
Mike
I've searched the internet and it appears that this can be done with an Arduino, but most of the posts on the subject are in German which I don't speak.
Does anyone here have any relevant experience please?
Mike
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